28197314 has 4 divisors (see below), whose sum is σ = 42295974. Its totient is φ = 14098656.

The previous prime is 28197289. The next prime is 28197343. The reversal of 28197314 is 41379182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28143025 + 54289 = 5305^2 + 233^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7049327 + ... + 7049330.

Almost surely, 2^28197314 is an apocalyptic number.

28197314 is a deficient number, since it is larger than the sum of its proper divisors (14098660).

28197314 is a wasteful number, since it uses less digits than its factorization.

28197314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098659.

The product of its digits is 12096, while the sum is 35.

The square root of 28197314 is about 5310.1143113873. The cubic root of 28197314 is about 304.3705157405.

The spelling of 28197314 in words is "twenty-eight million, one hundred ninety-seven thousand, three hundred fourteen".